Skip to content
Hull Gauge
Sheet 4485 · recomputed 5 Nov 2026, 03:30 UTC

17 m motor yacht by Sunseeker · built 2004–2009 (boats seen)

Sunseeker
Portofino 53 used price guide

Gauge Value
Firm · 25+ boats
£283,500€330,500$377,000

Middle half £234,000€272,500$320,500 – £375,000€417,500$483,500

median asking price of 25 boats listed since Oct 2020, in today's prices · asking, not sold

Watch

17.03 mbeam 4.60 mdraft 1.22 mfull specification

A used Sunseeker Portofino 53 asks a median of £283,500€330,500$377,000 across 25 boats listed since Oct 2020, in today's prices. Half sit between £234,000€272,500$320,500 and £375,000€417,500$483,500, and each year of age takes about 11% off.

01

The field

Each number is one boat: its asking price in thousands of pounds, at today's market level, set above the year it was built. The orange line is the model's middle price for its age; the shaded band holds the middle half. Tap a number to see the boat behind it.

24 boats by year built · asking prices in £ thousands, in today's prices · listed since Oct 2020 · asking, not sold · middle line fitted on 24 boats
24 boats · fill in Your boat below to place yours on the field. 1 boat without a build year is not drawn.
02

Your boat

Estimated from the boats above. No email, no broker call.

Listed in
optional, in pounds
Gauge Estimate · Indicative
£324,000€368,500$422,500

Likely range £266,000€310,000$345,000 – £392,500€453,500$511,500

24 comparable boats built 2004–2010 · hours not given · all markets · asking, not sold

Add your asking price to see where it sits among boats like yours.

The 2007 page: every 2007 boat and its estimate
03

By year built

Median from five boats; middle half from ten. Below that we print nothing rather than a guess. Linked years have their own page with that year's boats. The spread is drawn on the field's scale, in pounds.

YearBoatsMedianMiddle halfSpread
20092—too few boats
20084—too few boats
20075£394,500€449,000$483,500too few boats
20063—too few boats
20055£234,000€272,500$325,000too few boats
20045£233,500€272,000$312,000too few boats

Across boats built 2004 to 2009, each year of age takes about 11% off the asking price.

04

What moves the price

Each factor compares boats of the same age, so a newer boat's premium isn't counted twice. Five boats or more on each side, or we say so.

Age

Each year of age takes about 11% off the asking price.

−11%per year of age · fitted on 24 boats
Where it's listed

Boats listed in Europe ask about 16% less than those in the US, age for age.

−16%Listed in Europe 18 boats · against the US 5

Asking prices, not sold. Factors can overlap, so treat these as a guide to what the market asks, not a formula.

05

Time to sell

1,243days

listed so far: the median of 14 boats seen on two or more dates

36%

have cut their asking price: 4 of 11 boats seen at least 14 days apart

—

median size of a cut · withheld: fewer than five cuts to measure

These are asking prices, and asking is not selling. Days listed so far is not time to sell: a boat still listed has not sold, and we do not yet record when a listing ends. We have not measured how far sale prices land below asking; the methodology says what we can and cannot measure.

06

Cost to keep

A year on a South Coast marina berth, insured at the Gauge Value, in pounds. An estimate from published rates, not a quote.

Depreciation£30,30011% a year of age on the fitted curve, at the Gauge Value
Berthing—not estimated: no cited berthing figure for that region for a boat of 15 m or more
Maintenance and repairs£21,2505% to 10% of a value of £283,500 a year (maintenance, older boats) · Boatsetter
Lift-out and antifoul£80017.0 m at the cited rate per metre (Lake Yard: lift, hold, pressure wash, relaunch, plus antifoul labour) · Lake Yard price list 2026
Insurance£2,8500.5% to 1.5% of a value of £283,500 a year · Velos Insurance; Admiral Yacht Insurance
Engine servicing—not estimated: labour rates are cited, but no source publishes the hours a service takes
A year of ownership£55,200 £4,600 a month

Fuel is not included: no cited source gives the engine hours a typical owner runs in a year.

08

Questions about the Portofino 53

How much is a used Sunseeker Portofino 53 worth?

The median asking price is £283,500, from 25 boats listed since Oct 2020, in today's prices; half sit between £234,000 and £375,000. Each year of age takes about 11% off. For a specific boat, use Your boat above.

How long does a Sunseeker Portofino 53 stay on the market?

We do not measure time to sell yet. Across 14 boats seen on two or more dates, the median time between first and last sighting is 1,243 days so far. 36% of 11 boats seen at least 14 days apart have cut their asking price.

How fast does a Sunseeker Portofino 53 lose value?

About 11% of its asking price for each year of age, fitted on 24 boats built 2004 to 2009. On a boat at the median that is about £30,300 a year.

Are these sold prices?

No. They are asking prices observed on public listings, restated at today's market level. We have not yet measured how far sale prices land below asking, so we do not publish a figure for it.

09

About the Portofino 53

The boats behind this page were built between 2004 and 2009 and have been listed since Oct 2020, most often in the European market. 36% of the boats seen at least 14 days apart have cut their asking price.

How we measure: we read public listings from brokers and marketplaces, count a boat once when it appears on several sites, store its asking price each time it changes, and restate older asking prices at today's market level. We never republish a listing, a photograph or a seller. Every figure is recomputed nightly and dated; below five boats we publish nothing. The 25 boats here were listed in Europe and the US. Full methodology

Length overall
17.03 mfrom listings · 22 boats
Beam
4.60 mfrom listings · 16 boats
Draft
1.22 mfrom listings · 10 boats
Built
2004–2009from listings · 24 boats
Type
Motor yachtour classification